The treasury has existing legal authority to mint any amount in high-denomination platinum coins. Depositing this money would immediately reduce the deficit, although spending it would require authorization by congress.
In the current economic slump, creating new money in this manner would not cause much inflation. The minor inflation and devaluation that it did cause would be an economic benefit for the US and world economy.
Push legislation to simply send this money as a check to each US household, by number of legally-resident members. But do not wait for that to pass; mint the money now. And commit to continue minting it until unemployment goes down (below 8%) or inflation goes up (over 6%).